CN209912594U - Roll-forming conductor structure for overhead insulated cable - Google Patents
Roll-forming conductor structure for overhead insulated cable Download PDFInfo
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- CN209912594U CN209912594U CN201920573062.XU CN201920573062U CN209912594U CN 209912594 U CN209912594 U CN 209912594U CN 201920573062 U CN201920573062 U CN 201920573062U CN 209912594 U CN209912594 U CN 209912594U
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Abstract
The utility model discloses a roll-in shaping conductor structure for overhead insulated cable, including a radial cross section is circular inner conductor and multilayer outer conductor that multilayer transposition was in proper order outside the circular inner conductor of radial cross section is circular, the radial cross section of every outer conductor is the ring form, and every outer conductor comprises a plurality of outer single conductors that can constitute radial cross section and be ring form, and the radial cross section of outer single conductor is fan-shaped; wherein the inner circle of the innermost outer conductor is in fit contact with the outer circle of the circular inner conductor, and the inner circle of the outer conductor is in fit with the outer circle of the inner outer conductor. The utility model has compact internal structure, the filling coefficient reaches over 0.9 and can reach 0.94 at most; and with the specification the utility model discloses it is more than 3% less than traditional circular structure cable conductor external diameter of sticising, when satisfying national standard's requirement, can effectually provide the utilization ratio of raw and other materials, reduce the waste to social resource.
Description
Technical Field
The utility model relates to a power cable field, in particular to roll-in shaping conductor structure for overhead insulated cable.
Background
The overhead insulated cable can be generally divided into a hard aluminum wire structure, a hard copper wire structure, a steel core supporting structure and the like according to different structures, and the overhead insulated cable is widely applied to domestic and foreign power transmission lines because the overhead insulated cable has the main characteristics of high reliability of a good power supply line, convenience in erection and maintenance, reasonable economy and the like.
At present, most of the existing processing technologies for overhead insulated cable conductors adopt circular pressing molding or molded line twisting molding technologies, the production efficiency is low, and the market requirements are far from being met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a roll-in shaping conductor structure that is fit for being used for the production of built on stilts insulated cable conductor to traditional built on stilts insulated cable conductor production efficiency is low, and conductor fill factor is on the low side not enough and the defect of existence, provides one kind to solve above-mentioned problem.
The utility model provides a technical problem can adopt following technical scheme to realize:
a roll-formed conductor structure for an overhead insulated cable comprises an inner conductor with a circular radial section and a plurality of layers of outer conductors sequentially stranded outside the circular inner conductor with the circular radial section, wherein the radial section of each outer conductor is circular, each outer conductor is composed of a plurality of outer layer single conductors with circular radial sections, and the radial section of each outer layer single conductor is fan-shaped; wherein the inner circle of the innermost outer conductor is in fit contact with the outer circle of the circular inner conductor, and the inner circle of the outer conductor is in fit with the outer circle of the inner outer conductor.
In a preferred embodiment of the present invention, the joints between the adjacent outer single conductors in the outer conductor of the outer layer and the joints between the adjacent outer single conductors in the outer conductor of the inner layer are circumferentially staggered from each other.
In a preferred embodiment of the present invention, the circular inner conductor having a circular radial cross section is formed of a single circular inner conductor having a circular radial cross section.
In a preferred embodiment of the present invention, the circular inner conductor with a circular radial cross section is formed by twisting at least two inner single conductors with a sector radial cross section, which form a circle in the radial direction.
In a preferred embodiment of the present invention, the joints between the adjacent outer single conductors in the outer conductor and the joints between the adjacent inner single conductors in the inner conductor are staggered.
In a preferred embodiment of the present invention, the single circular inner conductor with a circular radial cross section, the fan-shaped inner single conductor with a radial cross section, and the outer single conductor are all formed by rolling a round single wire with a diameter of Φ 2.91mm through a driving roll forming device.
The utility model discloses a roll-in forming technique is through drawing circle single line, then through the pass design of different specifications, with circle single line rolling into the fan-shaped conductor of designing requirement behind the forming device of drive roll-in, through the integrated die shaping, reaches the circular conductor that each specification sectional area of technology settlement required, satisfies aluminium, copper conductor and uses.
The utility model discloses according to the difference of specification, the number of piles of conductor is different with the radical on every layer, for the roundness requirement after guaranteeing the conductor transposition, the angle diverse of two straight flanges of the single fan-shaped conductor design of each specification design makes cable conductor become rounding after the shaping through the transposition.
The utility model discloses production efficiency is that the tradition is circular sticiss 3 ~ 5 times of conductor production efficiency. The conventional round compacted conductor generally has a filling factor of only about 88%. The utility model discloses can improve the conductor filling coefficient greatly, reach more than 94%, the conductor surface is round and tidy, and effectual reduction conductor diameter reduces insulating quantity under the condition that satisfies the cable conductor and accord with the national standard requirement to reach the purpose of practicing thrift social resource.
Due to the adoption of the technical scheme, the utility model has a compact internal structure, the filling coefficient reaches over 0.9 and can reach 0.94 at most; and with the specification the utility model discloses it is more than 3% less than traditional circular structure cable conductor external diameter of sticising, when satisfying national standard's requirement, can effectually provide the utilization ratio of raw and other materials, reduce the waste to social resource.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of embodiment 1 of the roll-formed conductor structure for an overhead insulated cable according to the present invention.
Fig. 2 is the cross-sectional schematic view of the roll-formed conductor structure of embodiment 2 for the overhead insulated cable of the present invention.
Fig. 3 is a schematic cross-sectional view of embodiment 3 of the roll-formed conductor structure for an overhead insulated cable according to the present invention.
Fig. 4 is a schematic cross-sectional view of the roll-formed conductor structure of embodiment 4 for an overhead insulated cable according to the present invention.
Fig. 5 is a schematic cross-sectional view of embodiment 5 of the roll-formed conductor structure for an overhead insulated cable according to the present invention.
Fig. 6 is a schematic cross-sectional view of a roll-formed conductor structure of embodiment 6 for an overhead insulated cable according to the present invention.
Fig. 7 is a schematic cross-sectional view of embodiment 7 of the roll-formed conductor structure for an overhead insulated cable according to the present invention.
Fig. 8 is a schematic cross-sectional view of embodiment 8 of the roll-formed conductor structure for an overhead insulated cable according to the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further explained below.
Example 1
Referring to fig. 1, the roll-formed conductor structure for an overhead insulated cable shown in the figure comprises an inner conductor 1 with a circular radial cross section and an outer conductor 2 with a circular radial cross section, which are twisted together, wherein the cross section area of the inner conductor is 35mm2. The inner circle of the outer conductor 2 with the circular-ring-shaped radial section is in close contact with the outer circle of the inner conductor 1 with the circular-ring-shaped radial section.
The outer conductor 2 with the circular ring-shaped radial section consists of 5 outer layer single conductors 2a which can form the circular ring-shaped radial section; the radial section of each outer single conductor 2a is fan-shaped, and the included angle between two straight sides of the fan-shaped is 70 degrees.
The inner conductor 1 with a circular radial section and each outer layer single conductor 2a with a fan-shaped radial section are both formed by rolling round single wires with the diameter of phi 2.91mm after passing through a driving roll forming device.
Example 2
Referring to fig. 2, the roll-formed conductor structure for an overhead insulated cable shown in the figure comprises an inner conductor 3 with a circular radial cross section and an outer conductor 4 with a circular radial cross section, which are twisted together, wherein the cross section area of the inner conductor is 50mm2. The inner circle of the outer conductor 4 with the circular-ring-shaped radial section is in close contact with the outer circle of the inner conductor 3 with the circular-ring-shaped radial section.
The outer conductor 4 with the circular ring-shaped radial section consists of 7 outer layer single conductors 4a which can form the circular ring-shaped radial section; the radial section of each outer single conductor 4a is fan-shaped, and the included angle between two straight sides of the fan-shaped is 50 degrees.
The inner conductor 3 with a circular radial section and each outer layer single conductor 4a with a fan-shaped radial section are both formed by rolling round single wires with the diameter of phi 2.91mm after passing through a driving roll forming device.
Example 3
Referring to fig. 3, the roll-formed conductor structure for an overhead insulated cable shown in the figure comprises an inner conductor 5 having a circular radial cross section and an outer conductor 6 having a circular radial cross section, which are twisted together, and have a sectional area of 70mm2. The inner circle of the outer conductor 5 with the circular-ring-shaped radial section is in close contact with the outer circle of the inner conductor 1 with the circular-ring-shaped radial section.
The round inner conductor 5 with a round radial section is formed by twisting four inner single conductors 5a forming a round radial section, and the radial section of the inner single conductor 5a is in a fan shape; the included angle between two straight sides of the sector of the inner single conductor 5a is 88 degrees.
The outer conductor 6 with the circular ring-shaped radial section consists of 9 outer layer single conductors 6a which can form the circular ring-shaped radial section; the radial section of each outer single conductor 6a is fan-shaped, and the included angle between two straight sides of the fan-shaped is 38 degrees.
Each inner single conductor 5a with a fan-shaped radial section and each outer single conductor 6a with a fan-shaped radial section are both formed by rolling a round single wire with the diameter of phi 2.91mm through a driving roll forming device.
The joints between the adjacent outer single conductors 6a in the outer conductor 6 and the joints between the adjacent inner single conductors 5a in the inner conductor 5 are circumferentially offset from each other.
Example 4
Referring to fig. 4, the roll-formed conductor structure for overhead insulated cable shown in the figure comprises an inner conductor 7 with a circular radial cross section and two layers of outer conductors 8 and 9 with circular radial cross sections, which are twisted together, wherein the cross section area of the inner conductor is 95mm2. The inner circle of the outer conductor 8 with the circular-ring-shaped radial section is tightly contacted with the outer circle of the inner conductor 7 with the circular-ring-shaped radial section; the inner circle of the outer conductor 9 with the circular ring-shaped radial section is in close contact with the outer circle of the outer conductor 8 with the circular ring-shaped radial section.
The circular inner conductor 7 with a circular radial section is formed by twisting two inner single conductors 7a forming a circle in the radial direction, and the radial section of each inner single conductor 7a is semicircular.
The outer conductor 8 with the circular ring-shaped radial section consists of 6 outer layer single conductors 8a which can form the circular ring-shaped radial section; the radial section of each outer single conductor 8a is fan-shaped, and the included angle between two straight sides of the fan-shaped is 58 degrees.
The outer conductor 9 with the circular ring-shaped radial section consists of 6 outer layer single conductors 9a which can form the circular ring-shaped radial section; the radial section of each outer single conductor 9a is fan-shaped, and the included angle between two straight sides of the fan-shaped is 48 degrees.
Each inner single conductor 7a with a fan-shaped radial section and each outer single conductor 8a and 9a with a fan-shaped radial section are both formed by rolling a round single wire with the diameter of phi 2.91mm through a driving roll forming device.
The joints between the adjacent outer layer single conductors 8a in the outer conductor 8 and the joints between the adjacent outer layer single conductors 9a in the outer conductor 9 are circumferentially offset from each other.
Example 5
Referring to fig. 5, the roll-formed conductor structure for an overhead insulated cable shown in the figure includes an inner conductor 10 having a circular radial cross-section and two layers of outer conductors 11 and 12 having circular radial cross-sections, which are twisted together, and have a cross-sectional area of 120mm2. The inner circle of the outer conductor 11 with the circular-ring-shaped radial section is tightly contacted with the outer circle of the inner conductor 10 with the circular-ring-shaped radial section; the inner circle of the outer conductor 12 with the circular-ring-shaped radial section is in close contact with the outer circle of the outer conductor 11 with the circular-ring-shaped radial section.
The circular inner conductor 10 with a circular radial section is formed by twisting three inner single conductors 10a forming a circle in the radial direction, and the radial section of each inner single conductor 10a is in a fan shape; the included angle between the two straight sides of the sector of each inner single conductor 10a is 88 degrees.
The outer conductor 11 with the circular ring-shaped radial section consists of 7 outer layer single conductors 11a which can form the circular ring-shaped radial section; the radial section of each outer single conductor 11a is a sector, and the included angle between two straight sides of the sector is 50 degrees.
The outer conductor 12 with the circular ring-shaped radial section consists of 11 outer layer single conductors 12a which can form the circular ring-shaped radial section; each outer single conductor 12a has a sector-shaped radial cross section, and the included angle between two straight sides of the sector is 32 degrees.
Each inner single conductor 10a with a fan-shaped radial section and each outer single conductor 11a and 12a with a fan-shaped radial section are formed by rolling a round single wire with the diameter of phi 2.91mm through a driving roll forming device.
The joints between the adjacent outer single conductors 11a in the outer conductor 11 and the joints between the adjacent inner single conductors 11a in the inner conductor 10 are circumferentially offset from each other.
The joint between the adjacent outer layer single conductors 11a in the outer conductor 11 and the joint between the adjacent outer layer single conductors 12a in the outer conductor 12 are circumferentially offset from each other.
Example 6
Referring to fig. 6, the roll-formed conductor structure for an overhead insulated cable shown in the figure includes an inner conductor 13 having a circular radial cross section and two layers of outer conductors 14 and 15 having circular radial cross sections, which are twisted together and have a cross-sectional area of 150mm2. The inner circle of the outer conductor 14 with the circular-ring-shaped radial section is tightly contacted with the outer circle of the inner conductor 13 with the circular-ring-shaped radial section; the inner circle of the outer conductor 15 having a circular ring-shaped radial cross section is in close contact with the outer circle of the outer conductor 14 having a circular ring-shaped radial cross section.
The circular inner conductor 13 with a circular radial section is formed by twisting four inner single conductors 13a forming a circle in the radial direction, and the radial section of each inner single conductor 13a is in a fan shape; the included angle between the two straight sides of the sector of each inner single conductor 13a is 58 degrees.
The outer conductor 14 with the circular ring-shaped radial section consists of 9 outer layer single conductors 14a which can form the circular ring-shaped radial section; each outer single conductor 14a has a sector-shaped radial cross section, and the included angle between two straight sides of the sector is 38 degrees.
The outer conductor 15 with the circular ring-shaped radial section consists of 13 outer layer single conductors 15a which can form the circular ring-shaped radial section; the radial section of each outer single conductor 15a is a sector, and the included angle between two straight sides of the sector is 27 degrees.
Each inner single conductor 13a with a sector-shaped radial section and each outer single conductor 14a and 15a with a sector-shaped radial section are formed by rolling a round single wire with the diameter of phi 2.91mm through a driving roll forming device.
The joints between the adjacent outer single conductors 14a in the outer conductor 14 and the joints between the adjacent inner single conductors 13a in the inner conductor 13 are circumferentially offset from each other.
The joints between the adjacent outer layer single conductors 14a in the outer conductor 14 and the joints between the adjacent outer layer single conductors 15a in the outer conductor 15 are circumferentially offset from each other.
Example 7
Referring to fig. 7, there is shown an overhead insulationThe roll-formed conductor structure for edge cable comprises an inner conductor 16 with a circular radial section and three layers of outer conductors 17, 18 and 19 with circular radial sections, which are twisted together and have a sectional area of 185mm2. The inner circle of the outer conductor 17 with the circular-ring-shaped radial section is tightly contacted with the outer circle of the inner conductor 16 with the circular-ring-shaped radial section; the inner circle of the outer conductor 18 with the circular-ring-shaped radial cross section is in close contact with the outer circle of the outer conductor 17 with the circular-ring-shaped radial cross section, and the inner circle of the outer conductor 19 with the circular-ring-shaped radial cross section is in close contact with the outer circle of the outer conductor 18 with the circular-ring-shaped radial cross section.
The outer conductor 17 with the circular ring-shaped radial section consists of 6 outer layer single conductors 17a which can form the circular ring-shaped radial section; the radial section of each outer single conductor 17a is a sector, and the included angle between two straight sides of the sector is 58 degrees.
The outer conductor 18 with the circular ring-shaped radial section consists of 11 outer layer single conductors 18a which can form the circular ring-shaped radial section; each outer single conductor 18a has a sector-shaped radial cross section, and the included angle between two straight sides of the sector is 32 degrees.
The outer conductor 19 with the circular ring-shaped radial section consists of 14 outer layer single conductors 19a which can form the circular ring-shaped radial section; the radial section of each outer single conductor 19a is a sector, and the included angle between two straight sides of the sector is 25 degrees.
The inner conductor 16 with a circular radial section and the outer layer single conductors 17a, 18a and 19a with fan-shaped radial sections are all formed by rolling round single wires with the diameter of phi 2.91mm through a driving roll forming device.
The joints between the adjacent outer layer single conductors 17a in the outer conductor 17 and the joints between the adjacent outer layer single conductors 18a in the outer conductor 18 are circumferentially offset from each other.
The joints between the adjacent outer layer single conductors 18a in the outer conductor 18 and the joints between the adjacent outer layer single conductors 19a in the outer conductor 19 are circumferentially offset from each other.
Example 8
Referring to fig. 8, there is shown a roll-formed conductor structure for an overhead insulated cable, comprising an inner conductor 20 having a circular radial cross-section and three outer conductors 2 having circular radial cross-sections1. 22, 23 are twisted, and the cross section area is 240mm2. The inner circle of the outer conductor 21 with the circular-ring-shaped radial section is tightly contacted with the outer circle of the inner conductor 20 with the circular-ring-shaped radial section; the inner circle of the outer conductor 22 having a circular ring-shaped radial cross section is in close contact with the outer circle of the outer conductor 21 having a circular ring-shaped radial cross section, and the inner circle of the outer conductor 23 having a circular ring-shaped radial cross section is in close contact with the outer circle of the outer conductor 22 having a circular ring-shaped radial cross section.
The circular inner conductor 20 having a circular radial cross section is formed by twisting two inner single conductors 20a forming a circle in the radial direction, and the radial cross section of each inner single conductor 20a is semicircular.
The outer conductor 21 with the circular ring-shaped radial section consists of 7 outer layer single conductors 21a which can form the circular ring-shaped radial section; each outer single conductor 21a has a sector-shaped radial cross section, and the included angle between two straight sides of the sector is 44 degrees.
The outer conductor 22 with the circular ring-shaped radial section consists of 11 outer layer single conductors 22a which can form the circular ring-shaped radial section; each outer single conductor 22a has a sector-shaped radial cross section, and the included angle between two straight sides of the sector is 32 °.
The outer conductor 23 with the circular ring-shaped radial section consists of 15 outer layer single conductors 23a which can form the circular ring-shaped radial section; the radial section of each outer single conductor 23a is a sector, and the included angle between two straight sides of the sector is 23.4 degrees.
The inner single conductor 20a with the semicircular radial section and each outer single conductor 21a, 22a and 23a with the fan-shaped radial section are all formed by rolling a round single wire with the diameter of phi 2.91mm through a driving roll forming device.
The joints between the adjacent outer layer single conductors 21a in the outer conductor 21 and the joints between the adjacent outer layer single conductors 22a in the outer conductor 22 are circumferentially offset from each other.
The joints between the adjacent outer layer single conductors 22a in the outer conductor 22 and the joints between the adjacent outer layer single conductors 23a in the outer conductor 23 are circumferentially offset from each other.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. The present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only for illustrating the principle of the present invention, without departing from the spirit and scope of the present invention, the present invention can also have various changes and improvements, and these changes and improvements all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A roll-formed conductor structure for an overhead insulated cable is characterized by comprising an inner conductor with a circular radial section and a plurality of layers of outer conductors sequentially stranded outside the circular inner conductor with the circular radial section, wherein the radial section of each outer conductor is circular, each outer conductor is composed of a plurality of outer layer single conductors with circular radial sections, and the radial section of each outer layer single conductor is fan-shaped; wherein the inner circle of the innermost outer conductor is in fit contact with the outer circle of the circular inner conductor, and the inner circle of the outer conductor is in fit with the outer circle of the inner outer conductor.
2. A roll-formed conductor structure for an overhead insulated cable according to claim 1, wherein the joint between the adjacent outer layer single conductors in the outer conductor of the outer layer and the joint between the adjacent outer layer single conductors in the outer conductor of the inner layer are circumferentially offset from each other.
3. A roll-formed conductor structure for an overhead insulated cable according to claim 1, wherein the circular inner conductor having a circular radial cross section is constituted by a single circular inner conductor having a circular radial cross section.
4. A roll-formed conductor structure for an overhead insulated cable according to claim 1, wherein the circular inner conductor having a circular radial cross section is formed by twisting at least two or more inner single conductors having a sector-shaped radial cross section, which form a circle in a radial direction.
5. A roll-formed conductor structure for an overhead insulated cable according to any one of claims 4 to 4, wherein the joint between the adjacent outer single conductors in the outer conductor of the outer layer and the joint between the adjacent inner single conductors in the inner conductor are offset from each other.
6. The roll-formed conductor structure for an overhead insulated cable according to claim 1, wherein the single circular inner conductor with a circular radial cross section, the inner single conductor with a sector radial cross section, and the outer single conductor are formed by rolling a round single wire with a diameter of Φ 2.91mm through a driving roll forming device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920573062.XU CN209912594U (en) | 2019-04-25 | 2019-04-25 | Roll-forming conductor structure for overhead insulated cable |
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| CN201920573062.XU CN209912594U (en) | 2019-04-25 | 2019-04-25 | Roll-forming conductor structure for overhead insulated cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110010291A (en) * | 2019-04-25 | 2019-07-12 | 金杯电工衡阳电缆有限公司 | A kind of aerial insulated cable roll-forming conductor structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110010291A (en) * | 2019-04-25 | 2019-07-12 | 金杯电工衡阳电缆有限公司 | A kind of aerial insulated cable roll-forming conductor structure |
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